嘟嘟小嘴卖卖萌揉揉小脸耍耍酷
[dū dū xiăo zuĭ mài mài méng róu róu xiăo liăn shuă shuă kù]
'Pout your little lips, show off your cute side, massage your baby face, act cool.' The net name gives the impression that this person considers themselves playful, mischievous and likes to draw attention by doing so.